Drinking water in 18055
One supply zone, water supplier: Nordwasser GmbH.
How to read the share of the parametric value
Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.
Wasserwerk Rostock
Nordwasser GmbHAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 1,48 mg/l | 50 mg/l | 3 % | Single value |
| Escherichia coli (E. coli) | 0 n/100 ml | 0/100 ml | — | Single value |
| Sulphate | 98,5 mg/l | 250 mg/l | 39 % | Single value |
| Sodium | 39,1 mg/l | 200 mg/l | 20 % | Single value |
Show all recorded parameters (29 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 n/100 ml | 0/100 ml | — | Single value |
| Intestinal enterococci | 0 n/100 ml | 0/100 ml | — | Single value |
Chemical parameters (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Fluoride | 0,20 mg/l | 1.5 mg/l | 13 % | Single value |
| Nitrate | 1,48 mg/l | 50 mg/l | 3 % | Single value |
| Nitrite | <0,01 mg/l below limit of quantification | 0.5 mg/l | < 2 % * | Single value |
| Uranium | <0,0009 mg/l below limit of quantification | 10 µg/l | < 9 % * | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Indicator parameters (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Ammonium | <0,10 mg/l below limit of quantification | 0.5 mg/l | < 20 % * | Single value |
| Chloride | 61,0 mg/l | 250 mg/l | 24 % | Single value |
| Coliform bacteria | 0 n/100 ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 n/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 n/ml | ohne anormale Veränderung | — | Single value |
| Conductivity (25 °C) | 741 μS/cm | 2,790 µS/cm | — | Single value |
| Iron | <0,02 mg/l below limit of quantification | 0.2 mg/l | < 10 % * | Single value |
| Manganese | <0,0016 mg/l below limit of quantification | 50 µg/l | < 3 % * | Single value |
| pH | 7,28 | 6,5–9,5 | — | Single value |
| Sodium | 39,1 mg/l | 200 mg/l | 20 % | Single value |
| Sulphate | 98,5 mg/l | 250 mg/l | 39 % | Single value |
| Temperature | 16,4 °C | — | — | Single value |
| Total organic carbon (TOC) | 4,6 mg/l C | ohne anormale Veränderung | — | Single value |
| Turbidity | < 0,1 NTU below limit of quantification | 1 NTU | — | Single value |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Treatment substances (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Free chlorine | 0,11 mg/l | — | — | Single value |
| Total chlorine | 0,26 mg/l | — | — | Single value |
Further parameters (7)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Acid capacity to pH 4.3 | 3,86 mmol/l | — | — | Single value |
| Calcium | 97,6 mg/l | — | — | Single value |
| Hardness range (WRMG) | hart | — | — | Single value |
| Magnesium | 11,2 mg/l | — | — | Single value |
| Oxygen | 11,9 mg/l | — | — | Single value |
| Potassium | 4,47 mg/l | — | — | Single value |
| Total hardness | 2,9 mmol/l | — | — | Single value |
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
Frequent questions about postcode 18055
- How hard is the water in Postcode 18055?
- Nordwasser GmbH publishes a total hardness of 2,9 mmol/l for the supply zone Wasserwerk Rostock — that corresponds to 16.3 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 04.05.2026, retrieved on 11/07/2026.
- How much nitrate is in the drinking water in Postcode 18055?
- Nordwasser GmbH publishes a nitrate value of 1,48 mg/l for the supply zone Wasserwerk Rostock. The statutory parametric value is 50 mg/l; the measured value represents 3 % of the parametric value. Basis: 04.05.2026, retrieved on 11/07/2026.
- Who supplies the drinking water in Postcode 18055?
- Nordwasser GmbH. The values shown here come from the supply zone Wasserwerk Rostock and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.
General questions — how current the data is, limit of quantification, parametric values, who is behind this site — are answered under Questions & answers.